Backend Engineer at HelloAR · Bengaluru (Bangalore) · 1 - 2 years · Bootstrapped · Posted 21 Sep 2023

Role Responsibilities:
- Development and Maintenance of REST APIs: Lead the creation and management of our RESTful APIs, ensuring top-notch performance and alignment with evolving requirements.
- Proficiency in Coding: We're in search of expertise in Python or equivalent programming languages. Your coding skills will play a pivotal role in delivering high-quality (efficient, reusable, testable, and scalable) solutions.
- Unit and Integration Testing: Apply your expertise to craft unit and integration tests, upholding code quality and reliability.
- Version Control Systems: Proficiency in Distributed Version Control Systems is vital for seamless collaboration during development.
- Elasticsearch Expertise: Having valuable experience with Elasticsearch is a plus, given its critical role in data retrieval and search functionalities.
- NOSQL Database Familiarity: Knowledge of NOSQL databases like Cassandra and MongoDB will be advantageous.
- Message Broker Knowledge: Understanding message brokers, especially RabbitMQ, is beneficial for effective communication within our systems.
Desired Qualifications:
- Experience: 1-2 years of hands-on experience as a Python developer.
- AWS: Proficiency in AWS cloud management and architecting enterprise data solutions.
- Pragmatic Problem-Solving: Recognize when a solution should be streamlined and when creating the right abstraction will lead to long-term efficiency gains.
- Passion for Quality: Demonstrate dedication to producing work of the highest quality and following best practices.
- Agile/Lean Process: Familiarity with Agile/Lean methodologies is a plus, reflecting your adaptability and collaborative spirit.
- Startup Mindset: Embrace the challenges and opportunities of a startup environment, contributing your skills and insights to our growth.
- Debugging and Optimization: Showcase excellent debugging and optimization capabilities to enhance system performance.
- Tech Awareness: Stay updated on emerging technologies and possess a solid understanding of the full product development life cycle.
- UX and Information Architecture: Exhibit excellent knowledge of mobile user experience, information architecture, and industry trends.

About HelloAR
About
HelloAR is 'Delivering the future of Online Shopping Experiences'. Our AI-driven platform offers a one-stop solution for creating an immersive, interactive visual catalog in a few minutes.
Tech stack
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Job Summary
We are seeking a skilled Python Developer with experience in building scalable applications using Python frameworks such as Flask and Django. The ideal candidate should have hands-on experience with PySpark for big data processing and strong SQL skills for data analysis and database management.
Key Responsibilities
- Design, develop, test, and maintain Python-based applications.
- Develop RESTful APIs using Flask and/or Django.
- Build scalable data processing pipelines using PySpark.
- Write efficient SQL queries, stored procedures, and optimize database performance.
- Integrate applications with databases and third-party services.
- Collaborate with cross-functional teams to gather and implement business requirements.
- Troubleshoot, debug, and enhance application performance.
- Follow coding standards, perform code reviews, and maintain technical documentation.
Required Skills
- Strong proficiency in Python.
- Hands-on experience with Flask and/or Django.
- Experience with PySpark for large-scale data processing.
- Strong knowledge of SQL (writing complex queries, joins, indexing, optimization).
- Understanding of REST APIs and microservices architecture.
- Experience with Git/version control.
- Knowledge of relational databases such as PostgreSQL, MySQL, SQL Server, or Oracle.
- Good problem-solving and analytical skills.
Preferred Skills
- Experience with cloud platforms (AWS, Azure, or GCP).
- Familiarity with Docker and Kubernetes.
- Knowledge of CI/CD pipelines.
- Experience with Airflow or other workflow orchestration tools.
- Understanding of Agile/Scrum methodologies.
Strong Python Developer profile with robust AWS exposure
2
Mandatory (Experience 1): Must have 7+ years of hands-on software development experience with at least the recent 4+ years in Python and strong hands on knowledge of AWS
3
Mandatory (Tech skill 1): Must have strong working knowledge of Python.
4
Mandatory (Tech skill 2): Must have good understanding of AWS services including EC2, S3, Lambda, IAM, CloudWatch, and ECS or ECR
5
Mandatory (Tech skill 3): Must be able to write and understand REST APIs
6
Mandatory (Tech skill 4): Experience designing and architecting scalable backend applications/services on AWS, including making decisions around application architecture, APIs, databases, and AWS services
7
Mandatory (Tech skill 5): Must be comfortable with version control tools such as Git, GitHub, Bitbucket, or GitLab
8
Mandatory (Tech skill 6): Must have good understanding of databases such as PostgreSQL, MySQL, or DynamoDB
9
Mandatory (Tech skill 7): Must have familiarity with Linux commands and shell scripting
10
Mandatory (Skill 1): Must have good debugging and problem-solving skills, with the ability to read existing code and make changes independently with light guidance
11
Mandatory (Skill 2): Must have strong communication skills
12
Preferred (Tech skill 2): Experience with AWS CodeCommit, and exposure to AWS CodeBuild, CodeDeploy, CodePipeline, GitHub Actions, Jenkins, or similar CI/CD tools
13
Preferred (Tech skill 3): Basic understanding of CI/CD pipelines
14
Preferred (Tech skill 4): Experience with Docker or container-based applications
15
Preferred (Tech skill 5): Basic knowledge of infrastructure-as-code tools such as Terraform or AWS CloudFormation
Job Role- Sr. Backend Developer (Python –Django)
Work Experience – 3-5years Roles and Responsibilities
• Understanding product requirements and convert to code
• Resolving bugs
• Stay on top of the product to ensure performance and scalability
• Ensure code quality and maintainability by following best practices and coding standards.
• Understand and keep the technical documentation up-to-date
• Implement RESTful APIs and integrate with front-end components and third-party services
• System architecture and design skills
Mandatory Experience:
• 3+ years of experience in REST API development with any Python based frameworks (Django, Django REST framework (DRF).
• 3+ years of experience in web development with Python
• 3+ years of experience with MySQL, PSQL
• 3+ years of experience with Git
• 3+ years of database programming experience (Postgres, SQL, ability to write complex queries)
• 3+ years of experience with Agile development cycle Good to have
• Contribution in any open-source projects
• Experience or understanding with DevOps
• Experience with agile development methodologies like Scrum
• API design & creation (e.g. OpenAPI)
• Experience in Test Driven Development
• Experience working in a product-based company Behavioral Skills
• Incessant problem solver
• Driven and eager to learn
• Optimistic and open to receiving feedback
• Highly organized and able to multitask
• Self –Starter to help with the design and programming of web applications. ∙
• Superior analytical and problem-solving skills
• Outstanding written and verbal communication skills
• Able to work in fast pace continuously evolving environment and ready to take up uphill challenges
• Able to understand cross cultural differences and can work with clients across geographies
Position: Python Developer – Flask
Experience: 3+ Years
Location: Bangalore
Joining: Immediate Joiner Preferred
Employment Type: Full-Time
About the Role
We are looking for a skilled and passionate Python Developer with strong experience in Flask framework to join our growing development team. The ideal candidate should have hands-on experience in developing scalable backend applications, REST APIs, and integrating databases/services in a fast-paced environment.
Key Responsibilities
Develop, test, and maintain backend applications using Python and Flask.
Design and build RESTful APIs for web and mobile applications.
Collaborate with frontend developers, QA teams, and product stakeholders.
Write reusable, scalable, and efficient code.
Integrate third-party APIs and services.
Optimize application performance and troubleshoot issues.
Work with databases and ensure data security and integrity.
Participate in code reviews and technical discussions.
Maintain proper documentation for development activities.
Required Skills
3+ years of experience in Python development.
Strong hands-on experience with Flask framework.
Good understanding of REST API development.
Experience with MySQL/PostgreSQL/MongoDB databases.
Familiarity with ORM libraries such as SQLAlchemy.
Knowledge of Git/version control systems.
Understanding of software development lifecycle and agile methodologies.
Basic understanding of Docker and deployment processes is an added advantage.
Good debugging and problem-solving skills.
Preferred Skills
Experience with AWS/Azure or cloud platforms.
Exposure to microservices architecture.
Familiarity with CI/CD pipelines.
Knowledge of frontend technologies like React or Angular is a plus.
Educational Qualification
Bachelor’s degree in Computer Science, Information Technology, or related field.
What We’re Looking For
Immediate joiner or candidates with short notice period.
Strong communication and teamwork skills.
Self-driven and proactive mindset
We are looking for a Python Backend Developer to design, build, and maintain scalable backend services and APIs. The role involves working with modern Python frameworks, databases (SQL and NoSQL), and building well-tested, production-grade systems.
You will collaborate closely with frontend developers, AI/ML engineers, and system architects to deliver reliable and high-performance backend solutions.
Key Responsibilities
- Design, develop, and maintain backend services using Python
- Build and maintain RESTful APIs using FastAPI
- Design efficient data models and queries using MongoDB and SQL databases (PostgreSQL/MySQL)
- Ensure high performance, security, and scalability of backend systems
- Write unit tests, integration tests, and API tests to ensure code reliability
- Debug, troubleshoot, and resolve production issues
- Follow clean code practices, documentation, and version control workflows
- Participate in code reviews and contribute to technical discussions
- Work closely with cross-functional teams to translate requirements into technical solutions
Required Skills & Qualifications
Technical Skills
- Strong proficiency in Python
- Hands-on experience with FastAPI
- Experience with MongoDB (schema design, indexing, aggregation)
- Solid understanding of SQL databases and relational data modelling
- Experience writing and maintaining automated tests
- Unit testing (e.g., pytest)
- API testing
- Understanding of REST API design principles
- Familiarity with Git and collaborative development workflows
Good to Have
- Experience with async programming in Python (async/await)
- Knowledge of ORMs/ODMs (SQLAlchemy, Tortoise, Motor, etc.)
- Basic understanding of authentication & authorisation (JWT, OAuth)
- Exposure to Docker / containerised environments
- Experience working in Agile/Scrum teams
What We Value
- Strong problem-solving and debugging skills
- Attention to detail and commitment to quality
- Ability to write testable, maintainable, and well-documented code
- Ownership mindset and willingness to learn
- Teamwork
What We Offer
- Opportunity to work on real-world, production systems
- Technically challenging problems and ownership of components
- Collaborative engineering culture
Strong Python Developer profile with robust AWS exposure
2
Mandatory (Experience 1): Must have 7+ years of hands-on software development experience with at least the recent 4+ years in Python and strong hands on knowledge of AWS
3
Mandatory (Tech skill 1): Must have strong working knowledge of Python.
4
Mandatory (Tech skill 2): Must have good understanding of AWS services including EC2, S3, Lambda, IAM, CloudWatch, and ECS or ECR
5
Mandatory (Tech skill 3): Must be able to write and understand REST APIs
6
Mandatory (Tech skill 4): Must be comfortable with version control tools such as Git, GitHub, Bitbucket, or GitLab
7
Mandatory (Tech skill 5): Must have good understanding of databases such as PostgreSQL, MySQL, or DynamoDB
8
Mandatory (Tech skill 6): Must have familiarity with Linux commands and shell scripting
9
Mandatory (Skill): Must have good debugging and problem-solving skills, with the ability to read existing code and make changes independently with light guidance
10
Mandatory (Skill 2): Must have strong communication skills
11
Preferred (Tech skill 1): Experience with AWS CodeCommit, and exposure to AWS CodeBuild, CodeDeploy, CodePipeline, GitHub Actions, Jenkins, or similar CI/CD tools
12
Preferred (Tech skill 2): Basic understanding of CI/CD pipelines
13
Preferred (Tech skill 3): Experience with Docker or container-based applications
14
Preferred (Tech skill 4): Basic knowledge of infrastructure-as-code tools such as Terraform or AWS CloudFormation
We are looking for a skilled Python Developer to design, develop, and maintain robust backend systems. You will be responsible for building scalable web applications using the Flask micro-framework and managing high-performance NoSQL data storage with MongoDB. Your role involves creating RESTful APIs, optimizing database queries, and ensuring seamless integration between the backend logic and frontend components.
Key Responsibilities
- API Development: Design and implement scalable, secure RESTful APIs using Flask.
- Database Management: Architect and maintain MongoDB schemas; develop complex aggregation pipelines and optimize query performance.
- Backend Logic: Write clean, efficient, and testable Python code to handle server-side logic and data processing.
- Integration: Integrate third-party services and internal data sources using libraries like Requests or Flask-PyMongo.
- Performance Optimization: Identify and resolve bottlenecks in the application and database layers to ensure low latency.
- Testing & Security: Implement unit tests (using pytest or unittest) and follow security best practices (OAuth2, JWT, data encryption).
- Collaboration: Work closely with frontend developers to integrate user-facing elements and with DevOps to support deployment.
Required Technical Skills
CategoryRequirementsLanguageExpert-level Python (OOP, decorators, generators, and async programming).Frameworks Strong experience with Flask (routing, blueprints, middleware).DatabaseProficiency in MongoDB (BSON, indexing, sharding, and aggregation framework).ODMs/DriversExperience with PyMongo or MongoEngine.ArchitectureSolid understanding of RESTful API design and Microservices.Tools/DevOpsVersion control with Git; familiarity with Docker and CI/CD pipelines
We are looking for an exceptional Python Backend Developer to join our engineering team. You will be responsible for managing the interchange of data between the server and the users, developing server-side logic, and ensuring high performance and responsiveness to requests from the front end. The ideal candidate must have a rock-solid foundation in core computer science concepts, specifically Object-Oriented Programming (OOP) and Data Structures and Algorithms (DSA), to design and implement highly scalable and optimised backend systems.
Responsibilities:
- Design, build, and maintain efficient, reusable, and reliable Python code.
- Develop robust, highly scalable, and low-latency backend architectures and APIs.
- Apply strong OOPS principles to build modular and maintainable software systems.
- Utilise advanced Data Structures and Algorithms (DSA) to solve complex computational problems and optimise application performance.
- Integrate user-facing elements developed by front-end developers with server-side logic.
- Implement security and data protection measures.
- Identify bottlenecks, troubleshoot bugs, and devise elegant solutions to mitigate these issues.
- Collaborate cross-functionally with product managers, front-end developers, and QA engineers to deliver high-quality features.
Requirements:
- Core Python: Strong proficiency in Python programming with a deep understanding of its quirks, ecosystem, and best practices.
- OOPs Expertise: Excellent command over Object-Oriented Programming concepts (Inheritance, Polymorphism, Encapsulation, Abstraction) and design patterns.
- DSA Proficiency: Strong problem-solving skills with a deep understanding of Data Structures (Arrays, Trees, Graphs, Hash Tables, etc. ) and Algorithms (Sorting, Searching, Dynamic Programming, etc. ).
- Frameworks: Hands-on experience with popular Python web frameworks such as Django, FastAPI, or Flask.
- Database Management: Solid understanding of relational databases (e. g., PostgreSQL, MySQL) and ORM (Object-Relational Mapper) libraries.
- API Development: Experience in designing and developing RESTful APIs.
- Version Control: Proficient understanding of code versioning tools, such as Git.
- Clean Code: A strong commitment to writing clean, readable, and properly documented code.
Good to Have (Optional):
- Experience with NoSQL databases (e. g., MongoDB, Redis).
- Familiarity with cloud platforms (AWS, GCP, or Azure) and containerization tools (Docker, Kubernetes).
- Knowledge of asynchronous programming in Python (asyncio).
Key Responsibilities
● Lead the architecture, design, development, and delivery of scalable backend services
using Python.
● Own technical direction and architectural decisions for backend systems and services.
● Design and build robust RESTful APIs, microservices, and distributed systems
capable of handling high-scale workloads.
● Design and implement real-time communication systems, including WebSocket-based
services, where required.
● Drive system performance, scalability, reliability, availability, and security.
● Lead performance optimization, capacity planning, monitoring, debugging, and
production issue resolution.
● Establish and promote best practices around code quality, testing, observability, CI/CD,
and production readiness.
● Collaborate closely with frontend, product, DevOps, infrastructure, and other
cross-functional teams to deliver end-to-end solutions.
● Mentor and provide technical guidance to engineers, contributing to overall team growth
and engineering excellence.
● Review code and architecture designs, identify technical risks, and drive improvements
across backend systems.
● Take ownership of complex technical problems and deliver reliable, maintainable,
production-grade solutions.
Required Skills & Qualifications
● 5+ years of software engineering experience, with significant experience in backend
development.
● Strong expertise in Python and experience building production-grade backend
applications.
● Proven experience designing and developing REST APIs and microservices
architectures.
● Strong understanding of distributed systems, scalability, fault tolerance, and
high-availability architectures.
● Hands-on experience with WebSockets and real-time backend integrations.
● Strong experience with SQL/NoSQL databases, caching systems, and data-intensive
applications.
● Experience with performance optimization, monitoring, logging, debugging, and
production operations.
● Strong understanding of software engineering principles, design patterns, and clean
architecture.
● Proven ability to lead technical initiatives and make sound architectural decisions.
● Strong communication, collaboration, and technical leadership skills.
● Experience mentoring engineers and conducting effective code and design reviews.
Euphoric Thought Technologies is a technology-driven firm focused on building scalable software solutions that streamline complex business processes. Operating at the intersection of data engineering and cloud infrastructure, the company serves a diverse portfolio of clients across the fintech and enterprise SaaS sectors. With a culture rooted in technical excellence and agile problem-solving, Euphoric Thought Technologies empowers its engineers to own their modules from conception to deployment, fostering an environment where high-impact code is the primary driver of growth.
Role Overview:
As a Python Developer specializing in Flask, you will be responsible for architecting and maintaining robust backend services that power our core platforms. Must have hands on experience in React.js ,You will work closely with cross-functional teams, including product managers and frontend engineers, to translate business requirements into high-performance API endpoints. Your daily contributions will directly influence the scalability and reliability of our applications, ensuring that our users experience seamless performance even as our data volume and traffic continue to grow.
Key Responsibilities:
- Design and implement scalable RESTful APIs using the Flask framework to support high-traffic web applications.
- Optimize database queries and schema designs in SQL to ensure low-latency data retrieval for complex reporting modules.
- Deploy and manage backend services on AWS infrastructure, ensuring high availability and efficient resource utilization.
- Collaborate with the engineering team to conduct rigorous code reviews, maintaining high standards for code quality and maintainability.
- Troubleshoot and resolve production-level bottlenecks to improve the overall stability of the application ecosystem.
- Integrate third-party services and internal microservices to expand the functionality of our existing product suite.
Required Skillset:
- Demonstrated expertise in building production-grade applications using Python and the Flask framework with 5 years of professional experience.
- Strong proficiency in React.js.
- Hands-on experience with AWS cloud services, including EC2, RDS, and S3, for deploying and scaling backend infrastructure.
- Ability to communicate technical concepts clearly to non-technical stakeholders and work effectively in a collaborative, team-oriented environment.
- Strong analytical mindset with the ability to debug complex issues and provide long-term architectural solutions.
- Comfortable working in a hybrid office environment in Bangalore, demonstrating the ability to manage tasks independently while staying aligned with team goals.
- A degree in Computer Science, Engineering, or a related field is preferred, though equivalent professional experience is highly valued.
Experience:
- Python: 5 years (Preferred)
- AWS: 3 years (Preferred)
- Flask: 3 years (Preferred)
- React.js 4 years (Preferred)






